Examples of java.util.concurrent.ThreadFactory

java.util.concurrent.ThreadFactory
An object that creates new threads on demand. Using thread factories removes hardwiring of calls to {@link Thread#Thread(Runnable) new Thread}, enabling applications to use special thread subclasses, priorities, etc.
The simplest implementation of this interface is just:
```
 class SimpleThreadFactory implements ThreadFactory { public Thread newThread(Runnable r) { return new Thread(r); } } 
```
The {@link Executors#defaultThreadFactory} method provides a moreuseful simple implementation, that sets the created thread context to known values before returning it. @since 1.5 @author Doug Lea

     * {@code Thread.MIN_PRIORITY}. Idle threads are pruned after one minute.
     * @return  fresh ExecutorService
     */
    public static ExecutorService defaultExecutorService() {
        ThreadPoolExecutor executor = new ThreadPoolExecutor(0, Integer.MAX_VALUE, 60L, TimeUnit.SECONDS,
                new SynchronousQueue<Runnable>(), new ThreadFactory() {
            private final AtomicInteger counter = new AtomicInteger();


            @Override
            public Thread newThread(Runnable r) {
                Thread thread = new Thread(r, createName());

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      final String threadNamePrefix, int regionNumber) {
    int maxThreads = Math.min(regionNumber, conf.getInt(
        "hbase.hregion.open.and.init.threads.max", 10));
    ThreadPoolExecutor regionOpenAndInitThreadPool = Threads
    .getBoundedCachedThreadPool(maxThreads, 30L, TimeUnit.SECONDS,
        new ThreadFactory() {
          private int count = 1;


          public Thread newThread(Runnable r) {
            Thread t = new Thread(r, threadNamePrefix + "-" + count++);
            return t;

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    /**
     * A factory method to create a default thread pool and executor
     */
    protected ScheduledExecutorService createExecutorService() {
        return new ScheduledThreadPoolExecutor(defaultThreadPoolSize, new ThreadFactory() {
            int counter;


            public synchronized Thread newThread(Runnable runnable) {
                Thread thread = new Thread(runnable);
                thread.setName("Thread: " + (++counter) + " " + DefaultComponent.this.toString());

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     * This default spawns up to 32 background thread on an as need basis. Idle
     * threads are pruned after one minute.
     * @return  fresh ScheduledExecutorService
     */
    public static ScheduledExecutorService defaultScheduledExecutor() {
        ScheduledThreadPoolExecutor executor = new ScheduledThreadPoolExecutor(32, new ThreadFactory() {
            private final AtomicInteger counter = new AtomicInteger();


            @Override
            public Thread newThread(Runnable r) {
                Thread thread = new Thread(r, createName());

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     * {@code Thread.MIN_PRIORITY}. Idle threads are pruned after one minute.
     * @return  fresh ExecutorService
     */
    public static ExecutorService defaultExecutorService() {
        ThreadPoolExecutor executor = new ThreadPoolExecutor(0, Integer.MAX_VALUE, 60L, TimeUnit.SECONDS,
                new SynchronousQueue<Runnable>(), new ThreadFactory() {
            private final AtomicInteger counter = new AtomicInteger();


            @Override
            public Thread newThread(Runnable r) {
                Thread thread = new Thread(r, createName());

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        this.next = next;


        final int keepAliveTime = (1000 * 60 * 5);


        threadPool = new ThreadPoolExecutor(threads, threads, keepAliveTime, TimeUnit.MILLISECONDS, new LinkedBlockingQueue());
        threadPool.setThreadFactory(new ThreadFactory() {
            private volatile int id = 0;


            public Thread newThread(Runnable arg0) {
                Thread thread = new Thread(arg0, name + " " + getNextID());
                return thread;

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        return ThreadHelper.resolveThreadName(threadNamePattern, name);
    }


    @Override
    public Thread newThread(String name, Runnable runnable) {
        ThreadFactory factory = createThreadFactory(name, true);
        return factory.newThread(runnable);
    }

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        ObjectHelper.notNull(profile, "ThreadPoolProfile");


        ThreadPoolProfile defaultProfile = getDefaultThreadPoolProfile();
        profile.addDefaults(defaultProfile);


        ThreadFactory threadFactory = createThreadFactory(sanitizedName, true);
        ExecutorService executorService = threadPoolFactory.newThreadPool(profile, threadFactory);
        onThreadPoolCreated(executorService, source, profile.getId());
        if (LOG.isDebugEnabled()) {
            LOG.debug("Created new ThreadPool for source: {} with name: {}. -> {}", new Object[]{source, sanitizedName, executorService});
        }

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        // now call strategy to allow custom logic
        onNewExecutorService(executorService);
    }


    private ThreadFactory createThreadFactory(String name, boolean isDaemon) {
        ThreadFactory threadFactory = new CamelThreadFactory(threadNamePattern, name, isDaemon);
        return threadFactory;
    }

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  }


  static ThreadPoolExecutor getOpenAndCloseThreadPool(int maxThreads,
      final String threadNamePrefix) {
    return Threads.getBoundedCachedThreadPool(maxThreads, 30L, TimeUnit.SECONDS,
      new ThreadFactory() {
        private int count = 1;


        @Override
        public Thread newThread(Runnable r) {
          return new Thread(r, threadNamePrefix + "-" + count++);

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